Screen device

Abstract

The disclosure relates to a screen device having a screen tray in or on which at least one screen lining is disposed, wherein the screen lining can be vibrated by means of a vibratory drive, wherein the vibratory drive has two exciter units, wherein the exciter units are mechanically intercoupled by means of a synchronization device, wherein the synchronization device has two transmission elements, which can be detached in the area of a coupling point by means of a coupling device and are intercoupled for co-rotation. The assembly of such a screen device can be simplified if provision is made for an orientation aid having at least one orientation element to be provided, which is disposed and designed to orient the transmission elements with respect to each other in the area of the coupling point during the joining process of the two transmission elements.

1 - 13 . (canceled) 
     
     
         14 . A screen device, comprising:
 a screen tray;   at least one screen lining disposed in or on the screen tray;   a vibratory drive configured to vibrate the screen lining, the vibratory drive including first and second exciter units;   a synchronizer mechanically intercoupling the first and second exciter units, the synchronizer including first and second transmission elements detachably intercoupled in a coupling zone for co-rotation of the first and second transmission elements with each other; and   an orientation aid including at least one orientation element configured to orient the first and second transmission elements with respect to each other in the coupling zone during a joining of the first and second transmission elements.   
     
     
         15 . The screen device of  claim 14 , further comprising:
 first and second universal joints coupled with the first and second transmission elements, respectively, at ends of the first and second transmission elements facing away from the coupling zone; and   wherein the at least one orientation element is an elastic component configured to brace at least one of the first and second universal joints such that the transmission element connected to the at least one of the first and second universal joints is held in a joining position raised relative to a direction of gravity.   
     
     
         16 . The screen device of  claim 15 , wherein:
 the at least one orientation element includes first and second orientation elements formed as elastic components configured to brace the first and second universal joints, respectively, such that the first and second transmission elements are each held in a joining position raised relative to the direction of gravity.   
     
     
         17 . The screen device of  claim 15 , wherein:
 the first and second universal joints in conjunction with the first and second transmission elements form a cardan shaft; and   the at least one orientation element at least partially encompasses at least one of the universal joints in the form of a shrink tube.   
     
     
         18 . The screen device of  claim 14 , wherein:
 the first and second transmission elements each include a tube section, and the tube sections are inserted one into the other and are interconnected for co-rotation in the coupling zone.   
     
     
         19 . The screen device of  claim 14 , wherein:
 the at least one orientation element includes a fastening section fastened to a free end of the first transmission element;   the at least one orientation element includes a centering mount oriented towards the second transmission element.   
     
     
         20 . The screen device of  claim 19 , wherein:
 the centering mount includes a funnel-like widening which widens in a direction of the second transmission element.   
     
     
         21 . The screen device of  claim 14 , wherein:
 the at least one orientation element includes a molded body pushed onto a free end of the first transmission element, the molded body including a stop configured such that the molded body cannot be further displaced toward the first transmission element after the stop is engaged with the first transmission element.   
     
     
         22 . The screen device of  claim 14 , wherein:
 the screen device further includes a stationary component; and   the at least one orientation element includes a support body fastened to one of the first and second transmission elements, the support body being supported on the stationary component such that a sliding seat is provided between the support body and the stationary component along which the support body is displaceably guided in a joining direction during the joining of the first and second transmission elements.   
     
     
         23 . The screen device of  claim 14 , further comprising:
 a sheathing tube inside which the first and second transmission elements are disposed.   
     
     
         24 . The screen device of  claim 23 , wherein:
 the at least one orientation element is guided on an inner circumferential surface of the sheathing tube in a displaceable manner in a direction of a longitudinal extent of the sheathing tube thereby forming a sliding seat.   
     
     
         25 . The screen device of  claim 24 , wherein:
 the at least one orientation element is connected to one of the first and second transmission elements in a non-adjustable manner in a radial direction.   
     
     
         26 . The screen device of  claim 14 , further comprising:
 a limiting element configured to limit an adjustment motion of the at least one orientation element relative to at least one of the first and second transmission elements.   
     
     
         27 . The screen device of  claim 14 , wherein:
 the exciter units each include an electric motor driving a drive shaft, each drive shaft including at least one imbalance weight, the drive shafts of the exciter units being coupled to each other by the synchronizer; and   one of the first and second transmission elements is coupled to each drive shaft.   
     
     
         28 . The screen device of  claim 14 , wherein:
 the at least one orientation element is formed of a plastic material.   
     
     
         29 . The screen device of  claim 14 , wherein:
 the at least one orientation element is a foamed plastic part.   
     
     
         30 . The screen device of  claim 14 , wherein:
 the first and second transmission elements each have a different axial longitudinal extent in a direction of an axis of rotation of the synchronizer.   
     
     
         31 . A method of assembling a vibratory drive of a screen device, the vibratory drive including first and second exciter units, the method comprising:
 providing a synchronizer including first and second transmission elements;   orienting the first and second transmission elements with respect to each other with at least one orientation element; and   joining the first and second transmission elements by moving one of the first and second exciter units towards the other of the first and second exciter units while the first and second transmission elements are oriented with respect to each other by the at least one orientation element.   
     
     
         32 . The method of  claim 31 , wherein:
 the synchronizer includes first and second universal joints coupled with the first and second transmission elements, respectively;   the at least one orientation element is an elastic orientation element; and   the orienting includes bracing at least one of the first and second universal joints with the elastic orientation element such that the transmission element connected to the at least one of the first and second universal joints is held in a joining position raised relative to a direction of gravity.   
     
     
         33 . The method of  claim 31 , wherein:
 the at least one orientation element includes a support body;   the orienting includes fastening the support body to one of the first and second transmission elements and supporting the support body on a stationary component of the screen device such that a sliding seat is provided between the support body and the stationary component; and   the joining includes displaceably guiding the support body in a joining direction along the sliding seat during the joining of the first and second transmission elements.